Road roller



y 9, 4 A. H. BAYER 2,348,445

ROAD ROLLER 2 Sheets-Sheet 1 Filed Jan. 19, 1942 Patented May 9, 1944ROAD ROLLER August l-l. Bayer, North College HllLOhlo, assignor toLittlelord Brothers,

Incorporated, Cincinnati, Ohio, a. corporation of Ohio ApplicationJanuary 19, 1942, Serial No. 427,335

Claims.

This invention relates to road machinery and more particularly todevices like road rollers which are very heavy and which travel veryslowly in use. If such devices are to be moved over a considerabledistance, they must either travel along very slowly over this distanceor they must be placed upon a truck of some sort and thus be transportedto the place where they are to be used. It is an object of the presentinvention to provide means whereby a pair of wheels may be positioned insuch manner as to lift the roller off the roadway whereb the roller maybe attached to some towing vehicle and transported at normal speeds overa highway to the place of use. It is an object of my invent'on toprovide a construction whereby a pair of rubber tired wheels may becarried upon a road roller and may be moved to a position to support theroller with the roller itself raised from the roadway. It is anotherobject of my invention to provide a device as above outlined which willbe very simple in construction and in operation so as not to addexcessively to the cost Of the roller. While the invention is disclosedspecifically in connection with a road roller, it will be clear that theinvention is adaptable to all manner of devices. where a relativelyheavy, slow moving or stationary object is to be transported atrelatively great speeds.

These and other objects of the invention which will be described in moredetail hereinafter or which will be apparent to one skilled in the artupon reading these specifications, are accomplished by that certainconstruction and arrangement of parts of which an exemplary embodimentwill now be described.

Reference is made to the drawings forming a part hereof and in which:

Figure l. is an elevational view of a road roller in traveling positionhitched to a towing vehicle which is shown fragmentarily.

Figure 2 is an elevational view of the road roller in operatingposition.

Figure 3 is a detail view of the portion of the roller to which theinvention is applied with the hydraulic system shown diagrammatically.

Figure 4 is a detail elevational view of the crosslever in the positionit occupies when the wheels are raised.

Figure 5 is a view of the device of the reverse side.

Fig. 4 from Figure 6 is a detail cross-sectional view on an enlargedscale taken on the line 6-6 of Fig. 5. Figure '8 is a view-similar toFig. 3, showing the assembly in neutral position. v

Figure 8 is a view similar to Fig. 3 showing the assembly with thewheels down.

Figure 9 is a partial cross-sectional view taken on the line 99 of Fig.3.

Figure 10 is a detail. perspective view of the end of the piston rod.

Briefly, in the practice of the invention as applied particularly to aroad roller, the roller is joumaled in bearings fixed to the rollerframe. The running wheels are journaled in a link which is pivoted onthe roller shaft. The link is provided with an integral cross elementhaving an arcuate slot therein in which is engaged by means of a pin thepiston rod of a hydraulic cylinder which is pivoted to the roller frame.In a neutral position, i. e., when the roller and wheels both rest onthe ground the cross-lever assembly is so disposed that the pistonassembly may be swung selectively from a, position where the pin is atone end or the other of the arcuate slot. When pressure is applied tothe piston, the running wheels are raised or lowered depending uponwhich end of the slot the piston is positioned. Referring moreparticularly to Figure 1, there is shown a road roller having a frameI0. Means are provided as indicated generally at H for hitching theroller to' a towing vehicle I2. The roller is driven as by means of agasoline engine 03' and is provided with a transmission It. At itsforward end there is a wheel element It and a steering column l6 andsteering wheel ll whereby the roller may be guided. The roller elementis indicated at It and the running wheels at It. Referring moreparticularly now to Figure 3, it will be observed that a bearing bracket28 is bolted as by means of bolts 2! to the frame 10. In the bracket 20is 'oumaled the roller shaft 22. Keyed to the roller shaft 22 is thecross-lever indicated generally at 23 which is shown apart from theother elements in Figures 4 and 5. At its other end, the cross-lever 23is provided with a clamp 24 in which is clamped a stub shaft 25, uponwhich the running wheel 19, is freely rotatable. The member 23 hasintegral with it and disposed substantially transversely, the element 26which carries the arcuate slot 21. The member 28 is of substantiallyU-shape cross section as shown in Figure 6.

Pivoted to the frame l0 at 28 is a cylinder 29 of a hydraulic jack, thepiston of Whichhas mounted transversely of the end thereof as shown atFigure 10, a pin 30. The pin 30 rides in the arcuate slot 21 in each armof the U- shaped member 26. Oil is supplied to the cylinder 29 through aduct 3! by mean of a Pump May 9, 1944. H. K. GROWALD DETACHABLE GUNMOUNT Filed Aug. 23, 1940 2 Sheets-Sheet l HENRY K. GROWALD.

ATTORNEY.

